Merge of r4913: fixed CPU affinity on respawn of dead workers.
Worker processes are now made aware of their sequential number needed
to select CPU affinity mask. This replaces a workaround from r4865.
Maxim Dounin
6 years ago
| 19 | 19 | static ngx_uint_t ngx_reap_children(ngx_cycle_t *cycle); |
| 20 | 20 | static void ngx_master_process_exit(ngx_cycle_t *cycle); |
| 21 | 21 | static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data); |
| 22 | static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority); | |
| 22 | static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_int_t worker); | |
| 23 | 23 | static void ngx_worker_process_exit(ngx_cycle_t *cycle); |
| 24 | 24 | static void ngx_channel_handler(ngx_event_t *ev); |
| 25 | 25 | #if (NGX_THREADS) |
| 61 | 61 | #endif |
| 62 | 62 | |
| 63 | 63 | |
| 64 | uint64_t cpu_affinity; | |
| 65 | 64 | static u_char master_process[] = "master process"; |
| 66 | 65 | |
| 67 | 66 | |
| 359 | 358 | |
| 360 | 359 | for (i = 0; i < n; i++) { |
| 361 | 360 | |
| 362 | cpu_affinity = ngx_get_cpu_affinity(i); | |
| 363 | ||
| 364 | ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL, | |
| 365 | "worker process", type); | |
| 361 | ngx_spawn_process(cycle, ngx_worker_process_cycle, | |
| 362 | (void *) (intptr_t) i, "worker process", type); | |
| 366 | 363 | |
| 367 | 364 | ch.pid = ngx_processes[ngx_process_slot].pid; |
| 368 | 365 | ch.slot = ngx_process_slot; |
| 370 | 367 | |
| 371 | 368 | ngx_pass_open_channel(cycle, &ch); |
| 372 | 369 | } |
| 373 | ||
| 374 | cpu_affinity = 0; | |
| 375 | 370 | } |
| 376 | 371 | |
| 377 | 372 | |
| 725 | 720 | static void |
| 726 | 721 | ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data) |
| 727 | 722 | { |
| 723 | ngx_int_t worker = (intptr_t) data; | |
| 724 | ||
| 728 | 725 | ngx_uint_t i; |
| 729 | 726 | ngx_connection_t *c; |
| 730 | 727 | |
| 731 | 728 | ngx_process = NGX_PROCESS_WORKER; |
| 732 | 729 | |
| 733 | ngx_worker_process_init(cycle, 1); | |
| 730 | ngx_worker_process_init(cycle, worker); | |
| 734 | 731 | |
| 735 | 732 | ngx_setproctitle("worker process"); |
| 736 | 733 | |
| 836 | 833 | |
| 837 | 834 | |
| 838 | 835 | static void |
| 839 | ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority) | |
| 836 | ngx_worker_process_init(ngx_cycle_t *cycle, ngx_int_t worker) | |
| 840 | 837 | { |
| 841 | 838 | sigset_t set; |
| 839 | uint64_t cpu_affinity; | |
| 842 | 840 | ngx_int_t n; |
| 843 | 841 | ngx_uint_t i; |
| 844 | 842 | struct rlimit rlmt; |
| 852 | 850 | |
| 853 | 851 | ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| 854 | 852 | |
| 855 | if (priority && ccf->priority != 0) { | |
| 853 | if (worker >= 0 && ccf->priority != 0) { | |
| 856 | 854 | if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) { |
| 857 | 855 | ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| 858 | 856 | "setpriority(%d) failed", ccf->priority); |
| 916 | 914 | } |
| 917 | 915 | } |
| 918 | 916 | |
| 919 | if (cpu_affinity) { | |
| 920 | ngx_setaffinity(cpu_affinity, cycle->log); | |
| 917 | if (worker >= 0) { | |
| 918 | cpu_affinity = ngx_get_cpu_affinity(worker); | |
| 919 | ||
| 920 | if (cpu_affinity) { | |
| 921 | ngx_setaffinity(cpu_affinity, cycle->log); | |
| 922 | } | |
| 921 | 923 | } |
| 922 | 924 | |
| 923 | 925 | #if (NGX_HAVE_PR_SET_DUMPABLE) |
| 1297 | 1299 | |
| 1298 | 1300 | ngx_process = NGX_PROCESS_HELPER; |
| 1299 | 1301 | |
| 1300 | ngx_worker_process_init(cycle, 0); | |
| 1302 | ngx_worker_process_init(cycle, -1); | |
| 1301 | 1303 | |
| 1302 | 1304 | ngx_close_listening_sockets(cycle); |
| 1303 | 1305 | |